Free online tool

File Checksum Manifest

Create a SHA-256 or SHA-512 checksum list for several files. Save it to help check later whether the files have changed.

Works on your deviceNo account neededSHA-256 / SHA-512Open workspace ↓

What is a checksum manifest?

A checksum manifest lists each filename beside its cryptographic hash. Recalculate the hashes later and compare them to detect changed file contents.

Your file

Files to include

Drop your files here, or choose from your device.

Any file type · Up to 20 MB per file

Your input stays in this browser.

Your result

A little clarity, right here.

Choose a file and run the tool. Your result will appear here, ready to download.

Three simple steps

How to use File Checksum Manifest

  1. Choose your files from your device.

  2. Set the options and run the tool.

  3. Review the report, then copy or download your result.

Common questions

Good to know

Understand the result.
Keep the original.

Is this tool free, and are my files uploaded?

This tool is free with no account required. The work happens in your browser. Your input and files are not sent to a processing server.

What are the limits and details?

A matching hash does not establish who created a file or whether it is safe. Use a checksum from a trusted source.

Limits: 500,000 characters per text field; files up to 20 MB each, 10 files and 50 MB total. Processing stops after 30 seconds.